| /** |
| * A replacement for instanceof which includes an error warning when multi-realm |
| * constructors are detected. |
| * See: https://expressjs.com/en/advanced/best-practice-performance.html#set-node_env-to-production |
| * See: https://webpack.js.org/guides/production/ |
| */ |
| export declare const instanceOf: ( |
| value: unknown, |
| constructor: Constructor, |
| ) => boolean; |
| interface Constructor extends Function { |
| prototype: { |
| [Symbol.toStringTag]: string; |
| }; |
| } |
| export {}; |